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Testing Service Report Generation Capabilities in dianping/cat

This test suite validates the ServiceReportBuilder functionality in the CAT monitoring system, focusing on report generation across different time intervals. The tests verify the builder’s capability to generate hourly, daily, weekly and monthly service reports with proper date formatting and host information initialization.

Test Coverage Overview

The test suite provides comprehensive coverage of the ServiceReportBuilder’s temporal reporting capabilities.

Tests report generation for hourly, daily, weekly, and monthly intervals
Validates date parsing and formatting across different time periods
Verifies host information service initialization
Tests integration with CAT bootstrap configuration

Implementation Analysis

The testing approach utilizes JUnit framework with ComponentTestCase as the base class for dependency injection and component lookup.

Uses lookup() method for obtaining ServiceReportBuilder and HostinfoService instances
Implements systematic testing of different time-based report generation methods
Employs SimpleDateFormat for consistent date parsing across tests

Technical Details

JUnit test framework integration
ComponentTestCase for dependency management
SimpleDateFormat for date parsing
CAT bootstrap initialization with specific IP configuration
Constants.REPORT_SERVICE for report type definition

Best Practices Demonstrated

The test suite exemplifies solid testing practices for service-oriented components.

Proper separation of test cases for different time intervals
Consistent initialization of required services
Clear test method naming conventions
Systematic approach to testing temporal functionality
Proper exception handling with throws Exception

dianping/cat

cat-home/src/test/java/com/dianping/cat/report/task/service/ServiceBuilderTest.java

            
/*
 * Copyright (c) 2011-2018, Meituan Dianping. All Rights Reserved.
 *
 * Licensed to the Apache Software Foundation (ASF) under one or more
 * contributor license agreements. See the NOTICE file distributed with
 * this work for additional information regarding copyright ownership.
 * The ASF licenses this file to You under the Apache License, Version 2.0
 * (the "License"); you may not use this file except in compliance with
 * the License. You may obtain a copy of the License at
 *
 *    http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
package com.dianping.cat.report.task.service;

import java.text.SimpleDateFormat;

import org.junit.Test;
import org.unidal.lookup.ComponentTestCase;

import com.dianping.cat.Cat;
import com.dianping.cat.Constants;
import com.dianping.cat.report.page.statistics.task.service.ServiceReportBuilder;
import com.dianping.cat.service.HostinfoService;

public class ServiceBuilderTest extends ComponentTestCase {

	@Test
	public void testHourlyReport() throws Exception {
		Cat.getBootstrap().initialize("192.168.7.43");
		ServiceReportBuilder builder = lookup(ServiceReportBuilder.class);
		HostinfoService hostinfoService = lookup(HostinfoService.class);

		hostinfoService.initialize();
		builder.buildHourlyTask(Constants.REPORT_SERVICE, "cat", new SimpleDateFormat("yyyyMMddHH").parse("2013082011"));
	}

	@Test
	public void testDailyReport() throws Exception {
		ServiceReportBuilder builder = lookup(ServiceReportBuilder.class);
		HostinfoService hostinfoService = lookup(HostinfoService.class);

		hostinfoService.initialize();
		builder.buildDailyTask(Constants.REPORT_SERVICE, "cat", new SimpleDateFormat("yyyyMMdd").parse("20130712"));
	}

	@Test
	public void testWeeklyReport() throws Exception {
		ServiceReportBuilder builder = lookup(ServiceReportBuilder.class);
		HostinfoService hostinfoService = lookup(HostinfoService.class);

		hostinfoService.initialize();
		builder.buildWeeklyTask(Constants.REPORT_SERVICE, "cat", new SimpleDateFormat("yyyyMMdd").parse("20130710"));
	}

	@Test
	public void testMonthlyReport() throws Exception {
		ServiceReportBuilder builder = lookup(ServiceReportBuilder.class);
		HostinfoService hostinfoService = lookup(HostinfoService.class);

		hostinfoService.initialize();
		builder.buildMonthlyTask(Constants.REPORT_SERVICE, "cat", new SimpleDateFormat("yyyyMMdd").parse("20130701"));
	}

}